var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

// 导入session redis config 用来存储用户登录信息
const redisClinet = require("./db/redis")
const session = require("express-session")
const redisStore = require("connect-redis")(session)

var userRouter = require('./routes/user');
var blogRouter = require('./routes/blog');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

const sessionStore = new redisStore({
  client: redisClinet
})
app.use(session({
  resave: false,
  saveUninitialized: false,
  secret: "123",
  cookie: {
    path: "/",
    httpOnly: true,
    maxAge: 24*3600*1000
  },
  store: sessionStore
}))

app.use('/api/blog', blogRouter);
app.use('/api/user', userRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
